Reactive power control with voltage limiting function Q(Ulim)

In ByVoltageLim operation mode, the voltage-dependent limiting characteristic curve Q(Ulim) is active for reactive power control. Configuration is carried out via the ReactiveByVoltageLim parameter group (see ReactiveByVoltageLim).

The characteristic curve is based on a fixed lookup table with four operating points and is implemented in accordance with the specifications of the VDE standards. The operating points are preset by default in accordance with VDE-AR-N 4110. A horizontal offset of the characteristic curve is possible via the ReactiveByVoltageLimOffset parameter.

The resulting characteristic curve with the associated parameters is shown in the following figure.

Reactive power control with voltage limiting function Q(Ulim) 1: